Improvement in lamp-burners



SIMPSON &.CURRIER. LampChimney Holder.

Patented Sept. 2. 1862.

fig, 1

TATES ATENT Fries.

A. J. SIMPSON AND J. B. CURRIER, OF LOWELL, MASSACHUSETTS.

IMPROVEMENT IN LAMP-BURNERS.

Specification forming part of Letters Patent No. 36,374, dated September2, 1862.

To all whom it may concern:

Be it known that we, A. J. SIMPSON and J. B. CURRIER, both of Lowell, inthe county of Middlesex and State of Massachusetts, have invented a newand Improved Lamp-Burner of that class which are provided with glassdraft-chimneys and designed for burning coaloil and similarhydrocarbons; and we do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, making a part of this specification, in which-Figure 1 is a vertical central section of our invention, taken in thelineman, Fig. 2. Fig. 2 is a plan or top view of the same with the coneand parts connected to it detached. Fig. 3 is -a plan 'or top view ofthe same with the chimney removed. Fig. 4 is an external View orelevation of the same.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to an improved lampbnrner of that class in whichprovision is made for lighting the wick without removing the chimneyfrom the burner.

The invention consists in having the flange to which the chimney isattached provided with a pendent cylinder which encompasses the cone ordeflector of the burner, and which is fitted thereon in such a manner asto be allowed to rotate, the pendent cylinder being provided with anopening corresponding in size to asimilar opening in the cone ordeflector, the two openings being made to coincide with each other byturning the flange in one direction, so that the top of the wick-tubemay be exposed, or the opening in the cone or deflector closed byturning the flange in the opposite direction, so as to shut off thewick-tube from a direct communication with the external air.

The invention also consists in using in connection with the partsarranged as aforesaid a novel way for securing the chimney to theflange, whereby the latter may be turned on the cone or deflectorwithout the liability of the chimney being casually detached.

To enable those skilled in the art to fully understand and construct ourinvention, we will proceed to describe it.

A represents the body or fountain of the lamp, and B is the burner,which is screwed into the upper part of the lamp in the usual way. Theburner is perforated all around, as shown at a, and is provided with awick-tube, 0, arranged as usual, and also provided with a cone ordeflector, D, which is fitted on the upper part of the burner B andsecured in proper position by a spring-catch, E. The cone or deflectoris of the same form as those of ordinary burners, and it is encompassedby a cylinder, F, which extends down to the base of the cone and issecured thereon by sinking a groove, a, all around the cone at thejunction of its base and having the lower end of the cylinder bentinward, so as to form a lip, b, to fit in groove a. (See Fig. 1.) Bythis means the cylinder F is allowed to turn freely on the cone, andstill cannot be raised or detached therefrom. The upper convex surfaceof the cone projects a trifle above the upper edge of the cylinder F,and the latter is provided with a flange, G, which projects horizontallyall around its upper edge and is provided at opposite points with twolips, c c, which are curvedinward in hook form to projectover the edgesof the flanged at the base of the chimney, as shown in Figs. 1 and 4.The flange G has two curved slots, 6 6, made in it at opposite sides, asshown in Fig. 3. These curved slots give a certain degree of elasticityto the outer part of the flange and admit of the lips c a rising orspringing, so as to adjust themselves snugly on the flange d of thechimney as the former is shoved laterally between them. The flange G isprovided at one side between the two lips c c with a raised ledge, f,which serves as a stop and prevents the chimney being shoved too farbetween the lips c 0, so as to project over the edge of the flange.

The cone or deflector D has an opening, 9, made in its side, and asimilar opening, h, is made in the cylinder F, (see Fig. 4,) and whenthe flange G and cylinder F are turned so that the two openings 9 hregister with each other the top of the wick-tube is exposed and thewick may be lighted withthe greatest facility, and by turning the flangeG and cylinder F so that the openings 9 It will be out of register theopening 9 in the cone will of course be closed and the interior of thecone shut off from a direct communication'with the external air. WVhenthe Wick requires to be trimmed, the cone D and cylinder F, bythrowingbackthe spring-catch E, may be detached and the interior of the burnerfully exposed.

The advantages of this burner over others of the same class are, first,the invention may be applied to any ordinary coal-oil burner in use, thecone, with cylinder F attached, being applicable to the ordinary burner.Burners have been devised with openings or slides to admit of theinsertion of a match to light the wick; but they all hitherto, so far aswe are aware, involve some specialty in the construction of the burner,which augments the cost of manufacture and does not admit of theimprovement being applied to the ordinary ones.

By our invention it will be seen thatin the manufacture of the burnersno outlay in the way of expensive tools is required, as the body of theburner is of the ordinary form, and also the cone or deflector, the newparts being com posed of the flange G and cylinder F, which may becheaply made and applied at atrifling expense. The chimney also, bybeing secured to the flange G, as shown and described, obviates the useof screws, catches, &c., which have been hitherto used for the purpose,and all play of the chimney on the flangeis avoided, while at the sametime the slots 0 e admit of the lips c a yielding or giving tocompensate for the expansion of the chimney under the heat of the flame.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. The flange G, having the cylinder F attached, the latter being fittedon the cone or deflector D, as shown, so thatit may turn freely thereon,and at the same time prevented from being casually detached, incombination with the two openings gJz, made, respectively, in the coneand cylinder, all arranged as and for the purpose specified.

2. Providing the flange G with two curved slots, 6 e and lips c a,substantially as shown, for securing the chimney to the flange, and atthe same time admit of the expansion ot the chimney under the heat ofthe flame, as set

